Add any public XML sitemap
We validate it immediately and create the first clean snapshot.
Daily sitemap intelligence
Monitor every URL in your sitemap. Get a precise diff when pages appear, disappear, or stop responding.
Start free · No credit card · One calm check per day
Latest signal
POST /website-events
event: sitemap.changedDaily automated checks
Exact URL-level diffs
Email and webhooks
Zero crawler setup
One simple signal
SitemapDiff stays out of the way until your website gives you a reason to look.
We validate it immediately and create the first clean snapshot.
Every successful check is compared with the previous known state.
Get a concise email or send structured data into your own workflow.
Built for the signal, not the noise
Your websites
Catch pages that disappear after a deployment, redesign, or domain migration before the damage spreads.
The wider web
Notice new product, landing, content, location, and hiring pages as soon as they reach a public sitemap.
Your stack
Turn an added or removed URL into a clean starting signal for tools you already use.
Your first monitor is free
Add a sitemap now. We’ll only get in touch when something needs your attention.